The American Naturalist, Volumen30Essex Institute, 1896 |
Dentro del libro
Resultados 1-5 de 79
Página 15
... position . When they cease to be able to break through the gum , will they not still continue to develop at the same stage as the other teeth , and will not their rudiments be likely tobe present at this early stage long after they have ...
... position . When they cease to be able to break through the gum , will they not still continue to develop at the same stage as the other teeth , and will not their rudiments be likely tobe present at this early stage long after they have ...
Página 24
... position of the area centralis as indi- cated by the retinal arteries . The microscopic descriptions and the relation of the position and shape of the eye and ar- rangement of the retinal elements to the habits of the animal will follow ...
... position of the area centralis as indi- cated by the retinal arteries . The microscopic descriptions and the relation of the position and shape of the eye and ar- rangement of the retinal elements to the habits of the animal will follow ...
Página 72
... position of Honorary Curator to the Department of Insects ; of Mr. Wm . H. Ashmead to the position of Custodian of Hymenoptera , and Mr. D. W. Coquillett to the position of Custodian of Diptera . All museum custodians are honorary ...
... position of Honorary Curator to the Department of Insects ; of Mr. Wm . H. Ashmead to the position of Custodian of Hymenoptera , and Mr. D. W. Coquillett to the position of Custodian of Diptera . All museum custodians are honorary ...
Página 110
... position to have more of it placed upon us . The load of necessary names is quite suffi- cient , and we must have a reason for every one of them , in order to feel that it is necessary to carry it . Next , it is essen- tial that every ...
... position to have more of it placed upon us . The load of necessary names is quite suffi- cient , and we must have a reason for every one of them , in order to feel that it is necessary to carry it . Next , it is essen- tial that every ...
Página 111
... position ; and of hybrid combinations of Greek and Latin , are objects hardly worth contending for . Some few authors are quite independent of rules in the use of gender termina- tions , but I notice the A. O. U. requires these to be ...
... position ; and of hybrid combinations of Greek and Latin , are objects hardly worth contending for . Some few authors are quite independent of rules in the use of gender termina- tions , but I notice the A. O. U. requires these to be ...
Otras ediciones - Ver todas
Términos y frases comunes
acid adaptations Amer American animals appear augite bacteria beds beets birds bones Botany Bull cells characters cleavage color containing Cope crystals described diabases Diplopoda disease eggs embryo Eocene evidence evolution experiments Extr fact fauna fishes formation fossil gabbro gastrula gelatine genera genus Geol Geological gneisses heredity hornblende Hyracotherium IIBr insects Journ known Lacertilia larvæ latter length limestone lower mass ment method molars movements Museum mushroom bodies natural NATURALIST North observed occur organism original orthoclase Paleontology paper paroccipital phenocrysts plagioclase plants plates porphyritic premolar present probably Prof Professor protoplasm quartz recent referred region relation rocks Science segment selection skull species specimens spores sporophylls squamosal stage stain stem structure subspecies substance surface tail tion tissues University upper variations vegetative vessels xylem
Pasajes populares
Página 331 - KOREAN GAMES: WITH NOTES ON THE CORRESPONDING GAMES OF CHINA AND JAPAN, Stewart Culin.
Página 878 - Its power of inducing fermentation in a solution of sugar was entirely destroyed, although no perceptible change in the appearance of the yeast cells could be detected under the microscope. This experiment was repeated several times, and always with the same result, although when the yeast was simply washed in water it readily induced fermentation.
Página 182 - Consequently, if the theory be true, it is indisputable that before the lowest Cambrian stratum was deposited, long periods elapsed, as long as, or probably far longer than, the whole interval from the Cambrian age to the present day; and that during these vast periods the world swarmed with living creatures.
Página 818 - With this, the priest disappeared. I awoke at once and immediately told my wife the dream that I might not forget it. Next morning — Sunday — I examined the fragments once more in the light of these disclosures, and to my astonishment found all the details of the dream precisely verified in so far as the means of verification were in my hands. The original inscription on the votive cylinder read: "To the god Ninib, son of Bel, his lord, has Kurigalzu, pontifex of Bel, presented this.
Página 827 - Assistant Secretary of the Smithsonian Institution and Director of the National Museum, died in Washington, Sept.
Página 643 - ... 3. They show no intimate association in areal distribution with the blue limestone, nor any tendency to grade into it." " 4. The metamorphic changes to which the white limestones have been subjected are general in their nature, and...
Página 525 - With the opposite (withdrawing, depressive affects) in injurious and painful conditions. ments) — but by the reinstatement of it by a discharge of the energies of the organism, concentrated as far as may be for the excessive stimulation of the organs (muscles, etc.) most nearly fitted by former habit to get this stimulation again (in which the " stimulation " stands for the condition favorable to adaptation).
Página 952 - We must therefore picture to ourselves a fertile plain occupying the whole of the Bristol Channel, and supporting herds of reindeer, horses, and bisons, many elephants and rhinoceroses, and now and then being traversed by a stray hippopotamus, which would afford abundant prey to the lions, bears, and hyaenas, inhabiting all the accessible caves, as well as to their great enemy and destroyer, man."* III.
Página 416 - heightened discharge " are capable of formulation of the principle of " motor excess " : " the accommodation of an organism to a new stimulation is secured — not by the selection of this stimulation beforehand (nor of the necessary movements) — but by the reinstatement of it by a discharge of the energies of the organism, concentrated, as far as may be, for the excessive stimulation of the organs (muscles, etc.), most nearly fitted by former habit to get this stimulation again," '' in which...
Página 495 - ... on the way to Pawtucket; he wanted to get away somewhere — he didn't know where — and have rest. He had six or seven hundred dollars with him when he went into the store. He lived very closely, boarded by himself, and did his own cooking. He went to church, and also to one prayer-meeting. At one of these meetings he spoke about a boy who had kneeled down and prayed in the midst of the passengers on a steamboat from Albany to New York [an incident of which he was well aware in the Ansel Bourne...